Hanging lamp



FIG. 1 is a perspective view of a hanging lamp, showing the new design;

FIG. 2 is a front elevation view thereof, with all elevation views being identical;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom view thereof.

The broken lines in FIGS. 1, 2 and 4 represent a portion of a support member that forms no part of the claimed design. 

CLAIM The ornamental design for a hanging lamp, as shown and described. 